Short Chain (≤C4) Esterification Increases Bioavailability of Rosmarinic Acid and Its Potency to Inhibit Vascular Smooth Muscle Cell Proliferation
作者:Tina Blažević、Gottfried Reznicek、Limin Ding、Gangqiang Yang、Patricia Haiss、Elke H. Heiss、Verena M. Dirsch、Rongxia Liu
DOI:10.3389/fphar.2020.609756
日期:——
bioavailability of rosmarinic acid, up to 10.52%, after oral administration of its butyl ester, compared to only 1.57% after rosmarinic acid had been administered in its original form. When added to vascular smooth musclecells in vitro, all rosmarinic acid esters were taken up, remained esterified and inhibited vascular smooth musclecell proliferation with IC50 values declining as the length of alkyl chains
迷迭香酸是天然的酚酸和活性化合物,存在于许多烹饪植物中,例如迷迭香,薄荷,罗勒和紫苏。为了改善迷迭香酸的药代动力学特性及其对血管平滑肌细胞增殖的活性,我们生成了一系列迷迭香酸酯,其烷基链长度从C1到C12不断增加。UHPLC-MS / MS对大鼠血液样品的分析显示,迷迭香酸的丁基酯口服后,其迷迭香酸的生物利用度最高增长,最高可达10.52%,而迷迭香酸以其原始形式给药后仅为1.57%。当添加到血管平滑肌细胞中时体外,所有迷迭香酸酯都被吸收,保持酯化状态并抑制血管平滑肌细胞增殖,随着烷基链长度增加到C4,IC 50值下降,迷迭香酸丁酯的IC 50为2.84 µM,刃天青测定。血管平滑肌细胞停滞在细胞周期的G 0 / G 1期,视网膜母细胞瘤蛋白磷酸化被阻断。较长烷基链的酯化不能提高吸收,并导致细胞毒性。体外设置。在这项研究中,我们证明了用适当长度的烷基链(C1-C4)进行酯化是一种有希望改善体内
Synthesis, Characterization and Free Radical Scavenging Properties of Rosmarinic Acid Fatty Esters
作者:Jérôme Lecomte、Luis Javier López Giraldo、Mickaël Laguerre、Bruno Baréa、Pierre Villeneuve
DOI:10.1007/s11746-010-1543-8
日期:2010.6
The hydrophobation of rosmarinic acid with saturated aliphatic primary alcohols of various chain lengths (methanol to eicosanol) was achieved via an acid-catalyzed esterification in the presence of a highly acidic sulfonic resin. The resulting alkyl rosmarinates were isolated, characterized and their global freeradical scavenging activity was determined by the 2,2-diphenyl-1-picrylhydrazyl method
rosmarinic acid produces a variety of compounds with different antioxidant activity due to differences in polarity and thus differences in partitioning in oil, water, and interfacial regions of oil-in-water emulsions (O/W). Therefore, rosmarinic acid and rosmarinate esters provide an interesting tool to study the ability of antioxidant to interact in O/W emulsions. In O/W emulsions, rosmarinic acid (R0)